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(M Mel) A. J. TYLER.

'sAW VISE.

No. 331,745. Patented Dec. 1, 1885.

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UNITED STATES PATENT Erica AARON J. TYLER, OF ALBION, NEWV YORK, ASSIGNOR TO E. O. COLE, OF SAME PLACE.

SAW-VlSE.

SPECIFICATION forming part of Letters Patent No. 331,745, dated December 1, 1885.

Application filed September 22, 1885. Serial No. 177,832. (No model.)

To all whom it may concern:

Be it known that I, AARON J. TYLER, a citizen of the United States, residing at Albion, in the county of Orleans and State of New York, have invented certain new and useful Improvements in Saw-Vises, of which the following is a specification, reference being had therein to the accompanying draw- IngS.

My invention relates to improvements in saw-Vises, and is designed to produce a device for firmly holding a saw during the operation of filing, and for preventing vibration and noise incident to said operation.

In the drawings, Figure 1 represents a plan view of the device; Fig. 2, a side elevation; Fig. 3, a longitudinal section, and Fig. at a detail of the lever.

One of the'saw-holding jaws A is formed on the ends of the arms of a U-shaped frame, B, which is provided with perforated ears 0, for the passage of screws by means of which the device is secured to a frame or buck. The frame B has a rearward continuation, D, provided with a central recess 0r slot. On the rear or curved portion of the frame B is formed a frame, E, also of general U shape, and having its arms F extending freely forward parallel to and slightly raised above the said frame B for about two-thirds (more or less) of the distance from the rear or base of the frame B to the jaws A. The arms F are within the space occupied by the frame B. Pivoted to the forward ends of the said arms F by a transverse bolt or rod, G, is a frame, H, in size and shape corresponding to the frame 13 and coinciding therewith, and carrying one of the jaws A. From the rear of the frame H projects an extension, I, with a bifurcated end, as shown, coinciding in position to the continuation D in the frame 13. Tithin the bifurcated end of the extension I is pivotally fulcrumed the lever K, having its shorter arm preferably at about a right angle to its longer arm. The said shorter arm is pivot-ally connected to an arm, L, of about the same length, which in turn is pivoted in the recess of the continuation D. The shorter arm of the lever and the arm L form a toggle-joint connection between the rear ends of the two frames, the longer arm of the lever acting as an operating-handle, and when the jaws are closed rests between the arms F, as isseen in Fig. 3.

As the joint straightens the jaws are closed, y

pressing the saw between them and firmly holding it.

vVhen the arms of the joint are in line, the parts of the vise are brought to such a tension as to abolish vibration and prevent the disagreeable noise or screaking incident to saw-filing. The non-vibration is due to the pivoting of the movable jaw and frame to the armsF, so that the movable and fixed jaws shall be coincident and support the jaws equally, and not allow that leverage and nonequality of pressure that is likely to occur when the movable jaw has a central arm only to support and more it.

I claim- 1. A saw-vise consisting of the fixed U- shaped frame 13, carrying a jaw formed at the ends of the said frame, a U-shaped frame, E, integrally attached to the base of the frame B and having upwardly-projecting arms F, and a U-shaped jaw-carrying frame, H, of a size corresponding to that of the frame B and pivoted to the arms F, the whole operated substantially as specified.

2. Asaw-vise consisting ofa fixed U shaped jaw-carrying frame, B, a U-shaped frame, E, integral with the base of the fixed frame and having arms F, a U shaped frame, H, carrying ajaw and pivoted to the arms F, and a toggle-joint connection consisting of a link, L, pivoted to the base of the fixed jaw, and an angle-lever fulcrumed to the base of the frame H and pivotally connected by its shorter arm to the link L, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

A. J. TYLER.

Vitnesses:

CLARENCE TYLER, EDWARD 0. Com. 

